NR 508 EXAM 2 FINAL EXAM 2026 COMPLETE
QUESTIONS ANSWERS PREMIUM STUDY GUIDE
◉ conduction system.
Answer: sinoatrial node, atrioventricular node, bundle of His,
Purkinje fibers
◉ electrocardiogram (ECG).
Answer: ECG waveform (P wave, QRS complex, T wave)
◉ alterations of circulatory system.
Answer: decreased cardiac output (heart failure), myocardial
ischemia (myocardial infarction), impaired valvular function
(obstructed blood flow, regurgitation), left-sided heart failure
(decreased cardiac output, pulmonary congestion), right-sided heart
failure (distended jugular veins, peripheral edema), hypovolemia
(decreased circulating blood flow)
◉ sinus tachycardia.
Answer: regular rhythm, fast rate of 100-180 bpm
◉ sinus bradycardia.
, Answer: regular rhythm, slow rate of <60 bpm
◉ atrial fibrillation.
Answer: irregular ventricular response, irregular cardiac rate of
rhythm, no identifiable P wave
◉ ventricular tachycardia.
Answer: slightly irregular rhythm with rate of 100-200 bpm, absent
P wave, wide and weird QRS complex
◉ ventricular fibrillation.
Answer: irregular and chaotic rhythm with no discernible
rate/waves, ventricular quivering, not pumping, immediate
resuscitation
◉ asystole.
Answer: absence of electrical activity, immediate resuscitation
◉ factors affecting oxygenation.
Answer: decreased oxygen carrying capacity (altered hemoglobin,
i.e. anemia), decreased inspired oxygen concentration (upper/lower
airway obstruction, decreased environmental oxygen-i.e. high
altitudes, decreased delivery of inspired oxygen), increased
QUESTIONS ANSWERS PREMIUM STUDY GUIDE
◉ conduction system.
Answer: sinoatrial node, atrioventricular node, bundle of His,
Purkinje fibers
◉ electrocardiogram (ECG).
Answer: ECG waveform (P wave, QRS complex, T wave)
◉ alterations of circulatory system.
Answer: decreased cardiac output (heart failure), myocardial
ischemia (myocardial infarction), impaired valvular function
(obstructed blood flow, regurgitation), left-sided heart failure
(decreased cardiac output, pulmonary congestion), right-sided heart
failure (distended jugular veins, peripheral edema), hypovolemia
(decreased circulating blood flow)
◉ sinus tachycardia.
Answer: regular rhythm, fast rate of 100-180 bpm
◉ sinus bradycardia.
, Answer: regular rhythm, slow rate of <60 bpm
◉ atrial fibrillation.
Answer: irregular ventricular response, irregular cardiac rate of
rhythm, no identifiable P wave
◉ ventricular tachycardia.
Answer: slightly irregular rhythm with rate of 100-200 bpm, absent
P wave, wide and weird QRS complex
◉ ventricular fibrillation.
Answer: irregular and chaotic rhythm with no discernible
rate/waves, ventricular quivering, not pumping, immediate
resuscitation
◉ asystole.
Answer: absence of electrical activity, immediate resuscitation
◉ factors affecting oxygenation.
Answer: decreased oxygen carrying capacity (altered hemoglobin,
i.e. anemia), decreased inspired oxygen concentration (upper/lower
airway obstruction, decreased environmental oxygen-i.e. high
altitudes, decreased delivery of inspired oxygen), increased
